#!/bin/bash
# ==============================================================================
# chmod u+x /opt/nginx/cut_nginx_log.sh
# crontab -e
# 0 0 * * * /opt/nginx/cut_nginx_log.sh > /opt/nginx/logs/cut_nginx_log.log 2>&1
# ==============================================================================

LOGS_PATH="/usr/local/nginx/logs"
ARCHIVE_YEAR=$(date -d "yesterday" "+%Y")
ARCHIVE_MONTH=$(date -d "yesterday" "+%m")
ARCHIVE_DATE=$(date -d "yesterday" "+%Y%m%d_%H%M%S")
if [ -r /usr/local/nginx/logs/nginx.pid ]; then
  mkdir -p "${LOGS_PATH}/${ARCHIVE_YEAR}/${ARCHIVE_MONTH}"
  mv "${LOGS_PATH}/access.log" "${LOGS_PATH}/${ARCHIVE_YEAR}/${ARCHIVE_MONTH}/access_${ARCHIVE_DATE}.log"
  kill -USR1 $(cat "/usr/local/nginx/logs/nginx.pid")
  sleep 1
  gzip "${LOGS_PATH}/${ARCHIVE_YEAR}/${ARCHIVE_MONTH}/access_${ARCHIVE_DATE}.log"
else
  echo "Nginx might be down"
fi

# ==============================================================================
# Clean up log files older than 100 days
# ==============================================================================

# Change HOUSEKEEPING=1 to enable clean up
HOUSEKEEPING=0
KEEP_DAYS=100
if [ $HOUSEKEEPING == 1 ]; then
  if [ -d "${LOGS_PATH}" ]; then
    find "${LOGS_PATH}" -type f -name "access_*.log.gz" -mtime +${KEEP_DAYS} -exec rm -f {} \;
  fi
fi
